Corner reflector arrays can generate high resolution range profiles （HRRPs） similar to those of ship targets， posing significant challenges to existing radar recognition systems. However， the variation patterns of HRRPs for corner reflector arrays and ship targets differ with observation angles. Leveraging this distinction， this paper proposes a dual-radar HRRP similarity feature to discriminate between corner reflector arrays and ship targets. Electromagnetic simulation results demonstrate that this feature effectively captures the differences in HRRP stability under varying viewing angles for the two target types. When the line-of-sight angle between two radars exceeds 60°and the signal-to-clutter ratio （SCR） is -2 dB， the recognition accuracy for distinguishing corner reflector arrays from ships reaches 99.07% using the dual-radar HRRP similarity feature.